Abbreviations And Terms - Bosch Rexroth ID 40 Manual

16.2 Abbreviations and terms

Technical term
Sign-off
Actual link state
Commanded
link state
Auto mode
Auto disconnect
Auto reconnect
Buffered prefetch
Byte array
CAN
COB ID
CONNECTED state
Data block
Unbuffered prefetch
Event-oriented
data exchange
Emergency shell
Fieldbus master
Fieldbus slave
Formatting value
HF field
High byte
IBS
ID 40/SLK-CAN
ID 40/SLK-IBS
ID 40/SLK-PDP
ID 80/E
Node number
Command-oriented
data exchange
Console
Low byte
Description
Terminates MDT communication either with the commands DIS-
CONNECT/RECONNECT or the appropriate auto mode.
Shows the current link state between SLK and MDT.
Command to the SLK to change the system link state, e.g., from
the CONNECTED state phase to close the MDT.
Automatically terminates the data transmission phase with >auto
reconnect or >auto disconnect.
Automatically terminates the data transmission phase and turns
off the >HF field.
Automatically terminates the data transmission phase, but the HF
field remains on.
Data is read and stored in internal buffers.
Data array with a width of 8 bits and variable size.
Abbreviation for the CANopen fieldbus system that offers stan-
dardized payload transmission services.
Communication Object Identifier. Unique ID of a data telegram in
CANopen.
Direct MDT access via the fieldbus. The CONNECTED state has to
be terminated by a bus command.
A data block consists of the SLK address and a byte count. The
SLK address is the start address, and the byte count determines
the area length from the start address. It is written as address/
byte count.
Data is read and transmitted without buffers via >event-oriented
data exchange.
Cyclical data transmission from the SLK to the PLC.
Active shell after fatal system error.
User on a bus system with command authority over subordinate
users (>slaves).
User on a bus system without command authority.
Entered in the MDT memory during MDT formatting.
Electromagnetic high frequency field. Allows communication be-
tween MDT and SLK without contact.
High byte of a 16-bit value.
Abbreviation for the Interbus open fieldbus system according to
standard EN 50254.
Product designation for the SLK of the ID 40 system for connect-
ing to CANopen.
Product designation for the SLK of the ID 40 system for connect-
ing to Interbus.
Product designation for the SLK of the ID 40 system for connect-
ing to Profibus.
Product designation for the forerunner system of the ID 40. The
MDTs in both identification systems are compatible.
The SLK can be reached in the fieldbus system under this number.
The node number is configured via the serial interface. The IBS
does not require node numbers.
Do not confuse with the SLK address!
Data transmission option independent of the cyclical functioning
of fieldbus systems.
Shell
Low byte of a 16-bit value.
3 842 530 344/2014-05, MIT: ID 40, Bosch Rexroth AG
PROOF COPy 1 | 20.05.2014 | FOR INTERNAL USE ONLy
Appendix 173/176